Aeroplane



H. SCHRODER.

AEROPLANE.

APPLICATION FILED MAY 19, I919.

Patented June 28 19214,

3 SHEETS-SHEET I:

H. SCHRODER.

AERGPLANE APPUCFLHON FILED MAY 19, 19H? ii amdfi fifil u. Patented June 28, 1921,

3 SHEETSSHEET 2- H, SCH HUBER. AEROPLANE. APkfLlCATIQN IfILED MAY 19, I919.

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J U w m Q A mt Q Q HENRY SCHBD DER, OF CHICAGO, ILLINOIS.

AEROPLANE.

Specification of Letters Patent. Patented Juno $8 1921 Application filed May 19, 1919. Serial No. 297,984.

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Be it known that I, HENRY bonnonnn,

a former subject of the Emperor of Germany, who have declared my intention of be coming a citizen of the United States, and a resident of the city of Chicago, county of Cook and State of Illinois, have invented certain new and useful Improvements in Ae'roplanes, of which the following is a. specification. p

My invention relates to improvements in aeroplanes and has for its object the provision of an improved construction of this character provided with improved means for operating and manipulating the same, greatly facilitating the'commenceu'ient ot' flights and landing after a flight.

Other objects will appear hereinafter.

The invention consists in the combination and arrangements of parts hereinafter described and claimed.

, The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1, is a top plane view of an acreplane embodying the invention and shown in position of flight,

Fig. 2, an enlarged detailed view of the engine and associated parts shown in position assumed in the comnwncemeut of a fii ht,

plane shown in position for the commencement of flight, and

Fig. 4-, a front view corresponding with Fig.

The preferred form of construction as illustrated in the drawings comprises a suitable frame 5 having the usual vertical plane 6 mounted in the tail or rearward portion thereof, said frame 5 being mounted to run upon runners 7 and 8, as indicated.

The main supporting planes ofthe aero plane are in the form of sections 5), each of said sections being pivotally mounted as in- .dicated to normally hang vertically when the plane is at rest or is in the act of ascending or descending. but automatically swinging rearwardly into substantially horizontal positions when forward motion is imparted to the aeroplane, as will be readily understood, the resistance to the air causing such rearward swinging of the plane sections 9, and the frame being arranged to engage and limit such rearward swing when substanig. 3, an enlarged side view of the aerotially horizontal positions have been assumed. The form of aeroplane illustrated is the ordinary bi-plane construction and two rotation-preventing plane sections it) are associated with the upper set of supporting planes 9. These rotation-preventing planes verse shaft 17 upon which thecnginc 18 is mounted to oscillate. Engine 18 is equipped with the usual propeller shaft 18 carrying the usual propeller 18" at its fre or swinging end as shown. The trunnion shaft 17 carries a rocker arm I!) connected by a link 20 with an adjusting lever 21 cooperating with a notched segment 22 and by means of which the engine may be wung .so as. to bring the propeller shaft 18 either into horizoutal or vertical position as indicated. The tail of the machine is equipped with a horizontal tail plane 23 mounted to swing into either horizontal or vertical position as Shown. The cable 24 is attached at one end to an eye 24" on the plane 23 and leads thence over suitable guide pulleys on the frame 5 and over the guide pulleys 25 nd 2t), respectively, which are mounted on the engine framje, the other end of the cable 24 being secured to the free end of the rocker arm 27 attached to the plane 23.

In use, when it is dcsired"to commence a flight, the operator adjusts the engine to cause the propeller shaft-18' to project vertically as shown in Fig. 3. When in this position, the planes 5). 1t) and 23 will assume the positions indicated in full lines in Fig.

3. Then the engine is started and the thrust of the propeller 18" being directly upwardly the aeroplane will be lifted ofl' of the ground bodily, the vertical positions of the planes 9 and 23 permitting of such free vertical. movement of the aeroplane, and planes 10 tending to prevent rotation of the aeroplane under the influence of the reaction from the propeller 18. When a suitable elevation has been reached, the op rator by manipulating the lever 21 adjusts -the propeller shaftand engine until. the propeller shaft forward.

extends substantially horizontally, whereupon the thrust of the-propeller Will be This adjustment of the engine adjusts the planes into the dotted line po-v si'tion shown in Fig. 3 and the plane 23 into its horizontal position, which are the; correct positions of these planes t'orforward'flight, planes 10 again serving to prevent rotation of the aeroplane under the reaction from the propeller 13%". Upon forward movement of the aeroplane, theplane sections 9 automath cally siving rearwardly and upwardly into substantially horizonta ositions, whereupon they serve theusual functions :of the sup porting;planes of an aeroplane; In alight- 1llg, th(i operator may alight in the usual.

. 'way or may adjust the propeller shaft again into vertical position and operate the same at a speed somewhat less than the elevating speed, but suilicientto prevent falling of the aeroplane and permitting ofgentle settling of the same on to theearth, but in a substantially. vertical direction. Y

While Iliave'illustrated and described the.

preferred form of construction for carrying 1. An aeroplane comprising a frame;

planes thereon adjustable into; different positions relatively to the vertical; an angularly adjustable i propeller on said frame; an operative connection between said planes and said propeller for adjusting said planes upon adjustment of said propeller: I supporting planes pivotally mounted on said frame on an axis arranged transversely with reference to the direction of travel thereof, said supporting planes being arranged to hang normally in substantially vertical positions;

I and means for limiting the rearward swing of said supporting planes, substantially at horizontal positions, substantially as described.

frame to hang, normally in vertical posit ons; meansfor limiting the rearward swing 2. An aeroplane comprising a frame 2 main supporting planes 'i-ivotally mounted on said of said planes, substantially at horizontal positions; pivotally mounted rotation preventing planes associated with. said main supportingplanes; means for adjusting said rotation preventing planes to different angular positions; an angularly adjustable propeller on said frame; and an operative connection between said rotation preventing planes and said propeller for adjusting said planes uponadjustment of said propeller,

substantially as described.

3. An aeroplane comprising a frame main supporting: planes pivotally mounted on said frame to hang normally in vertical positions; means for limiting the rearward swing ofsaid planes substantially at horizontal positions; pivotally mounted rotation preventing planes associated with said main supporting planes; means for attlijusting said rotation preventing planes to di erent angu- I lar positions; an engine in said frame; a propeller shaftand propeller carried by said engine; means for swinging said engine, pro- .peller shaft, and propeller, from horizontal into vertical posit on and vice versa; and an operative connection between said engine andsaid rotation preventing planes for adjustingsaidplanes upon adjustment of said engine, substantially as described.

4. T An aeroplane comprising a frame; main supporting planes pivotallyinounted on said frame normally hang vertically; means for limiting rearward swing of'said planes substantially at horizontal positions; pivotally mounted rotation-preventing planes associated with said main'supporting planes; means for adjusting said rotation-preventing planes. to different angular positions; a tail supportingrplane mounted at the rear of said frameand pivoted to swing into horizontal or vertical-position ;an engine in said frame; a propeller shaft and propeller carried by said engine';n1eans for swinging said engine, propeller shaft and propeller from horizontal into vertical position and vice V6ISa;?l-fl(l an operative connection between said engine and said rotation-preventing and tail planes for adjusting said planes upon adjustment of said engine, substantially as described. a

In testimony whereof I, have signed my name to this specification ingthe two subscribing witnesses. V

NRY SCHRODER Vitnessesr r Tnos. S. DONNELLY, HELEN F. LILLIS.

presence of 

